题型:问答题 I bought a sweater for only 50 yuan yesterday; it was a real _____. [ ]A. trade B. exchange C. bargain D. business 查看答案
题型:问答题 44岁男患者,车祸时发生右大腿骨粉碎性及开放性骨折,在送往医院途中,该患者出现面部青紫,呼吸困难,口吐白沫而亡,其最可能的死因是()A.心肌梗死B.气体栓塞C.脂肪栓塞D.脑出血E.气胸 查看答案